Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Enhanced the DnD demo and made the code more informative.

Browse Source 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12439 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn
2001-11-15 23:59:42 +00:00
parent 1d965e2fb1
commit 163f2606f8
1 changed files with 84 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

108
wxPython/demo/CustomDragAndDrop.py
View File

@@ -13,7 +13,7 @@ class DoodlePad(wxWindow):
self.SetBackgroundColour(wxWHITE)
self.lines = []
self.x = self.y = 0
self.SetCursor(wxStockCursor(wxCURSOR_PENCIL))
self.SetMode("Draw")
EVT_LEFT_DOWN(self, self.OnLeftDown)
EVT_LEFT_UP(self, self.OnLeftUp)
@@ -22,6 +22,14 @@ class DoodlePad(wxWindow):
EVT_PAINT(self, self.OnPaint)
def SetMode(self, mode):
self.mode = mode
if self.mode == "Draw":
self.SetCursor(wxStockCursor(wxCURSOR_PENCIL))
else:
self.SetCursor(wxSTANDARD_CURSOR)
def OnPaint(self, event):
dc = wxPaintDC(self)
self.DrawSavedLines(dc)
@@ -36,12 +44,15 @@ class DoodlePad(wxWindow):
def OnLeftDown(self, event):
if event.ControlDown():
if self.mode == "Drag":
self.StartDragOpperation()
else:
elif self.mode == "Draw":
self.curLine = []
self.x, self.y = event.GetPositionTuple()
self.CaptureMouse()
else:
wxBell()
self.log.write("unknown mode!\n")
def OnLeftUp(self, event):
@@ -54,7 +65,7 @@ class DoodlePad(wxWindow):
self.Refresh()
def OnMotion(self, event):
if event.Dragging() and not event.ControlDown():
if event.Dragging() and not self.mode == "Drag":
dc = wxClientDC(self)
dc.BeginDrawing()
dc.SetPen(wxPen(wxBLUE, 3))
@@ -96,9 +107,11 @@ class DoodlePad(wxWindow):
dropSource = wxDropSource(self)
dropSource.SetData(data)
self.log.WriteText("Begining DragDrop\n")
result = dropSource.DoDragDrop()
result = dropSource.DoDragDrop(true)
self.log.WriteText("DragDrop completed: %d\n" % result)
if result == wxDragMove:
self.lines = []
self.Refresh()
#----------------------------------------------------------------------
@@ -118,15 +131,26 @@ class DoodleDropTarget(wxPyDropTarget):
# some virtual methods that track the progress of the drag
def OnEnter(self, x, y, d):
self.log.WriteText("OnEnter: %d, %d, %d\n" % (x, y, d))
return wxDragCopy
return d
def OnLeave(self):
self.log.WriteText("OnLeave\n")
def OnDrop(self, x, y):
self.log.WriteText("OnDrop: %d %d\n" % (x, y))
return true
#def OnDragOver(self, x, y, d):
# self.log.WriteText("OnDragOver: %d, %d, %d\n" % (x, y, d))
# return wxDragCopy
def OnDragOver(self, x, y, d):
#self.log.WriteText("OnDragOver: %d, %d, %d\n" % (x, y, d))
# The value returned here tells the source what kind of visual
# feedback to give. For example, if wxDragCopy is returned then
# only the copy cursor will be shown, even if the source allows
# moves. You can use the passed in (x,y) to determine what kind
# of feedback to give. In this case we return the suggested value
# which is based on whether the Ctrl key is pressed.
return d
# Called when OnDrop returns true. We need to get the data and
@@ -134,13 +158,15 @@ class DoodleDropTarget(wxPyDropTarget):
def OnData(self, x, y, d):
self.log.WriteText("OnData: %d, %d, %d\n" % (x, y, d))
# copy the data from the drag source to out data object
# copy the data from the drag source to our data object
if self.GetData():
# convert it back to a list of lines and give it to the viewer
linesdata = self.data.GetData()
lines = cPickle.loads(linesdata)
self.dv.SetLines(lines)
return d
return d # what is returned signals the source what to do
# with the original data (move, copy, etc.) In this
# case we just return the suggested value given to us.
@@ -156,6 +182,7 @@ class DoodleViewer(wxWindow):
self.SetDropTarget(dt)
EVT_PAINT(self, self.OnPaint)
def SetLines(self, lines):
self.lines = lines
self.Refresh()
@@ -180,27 +207,59 @@ class CustomDnDPanel(wxPanel):
self.SetFont(wxFont(10, wxSWISS, wxNORMAL, wxBOLD, false))
sizer = wxBoxSizer(wxHORIZONTAL)
text = wxStaticText(self, -1,
# Make the controls
text1 = wxStaticText(self, -1,
"Draw a little picture in this window\n"
"then Ctrl-Drag it to the lower \n"
"window or to another application\n"
"that accepts BMP's as a drop target.\n\n"
"The lower window is accepting a\n"
"custom data type that is a pickled\n"
"Python list of lines data.")
sizer.Add(text, 1, wxALL, 10)
"that accepts BMP's as a drop target.\n"
)
insizer = wxBoxSizer(wxVERTICAL)
insizer.Add(DoodlePad(self, log), 1, wxEXPAND|wxALL, 5)
insizer.Add(DoodleViewer(self, log), 1, wxEXPAND|wxALL, 5)
rb1 = wxRadioButton(self, -1, "Draw", style=wxRB_GROUP)
rb1.SetValue(true)
rb2 = wxRadioButton(self, -1, "Drag")
rb2.SetValue(false)
text2 = wxStaticText(self, -1,
"The lower window is accepting a\n"
"custom data type that is a pickled\n"
"Python list of lines data.")
self.pad = DoodlePad(self, log)
view = DoodleViewer(self, log)
# put them in sizers
sizer = wxBoxSizer(wxHORIZONTAL)
box = wxBoxSizer(wxVERTICAL)
rbox = wxBoxSizer(wxHORIZONTAL)
rbox.Add(rb1)
rbox.Add(rb2)
box.Add(text1, 0, wxALL, 10)
box.Add(rbox, 0, wxALIGN_CENTER)
box.Add(10,90)
box.Add(text2, 0, wxALL, 10)
sizer.Add(box)
dndsizer = wxBoxSizer(wxVERTICAL)
dndsizer.Add(self.pad, 1, wxEXPAND|wxALL, 5)
dndsizer.Add(view, 1, wxEXPAND|wxALL, 5)
sizer.Add(dndsizer, 1, wxEXPAND)
sizer.Add(insizer, 1, wxEXPAND)
self.SetAutoLayout(true)
self.SetSizer(sizer)
# Events
EVT_RADIOBUTTON(self, rb1.GetId(), self.OnRadioButton)
EVT_RADIOBUTTON(self, rb2.GetId(), self.OnRadioButton)
def OnRadioButton(self, evt):
rb = self.FindWindowById(evt.GetId())
self.pad.SetMode(rb.GetLabel())
#----------------------------------------------------------------------
#----------------------------------------------------------------------
@@ -230,7 +289,8 @@ class TestPanel(wxPanel):
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = TestPanel(nb, log)
#win = TestPanel(nb, log)
win = CustomDnDPanel(nb, log)
return win